Backpack bevel angle injection structure applied to three-plate machine

Abstract

The utility model relates to a backpack type oblique angle injection structure applied to a three-plate machine, which comprises a tail plate and a movable mold plate, the movable mold plate and the tail plate move relatively during injection molding, the backpack type oblique angle injection structure further comprises a supporting base, a backpack type supporting assembly and an injection mechanism, the supporting base is fixedly arranged at the top of the tail plate, and the movable mold plate and the tail plate move relatively during injection molding. The backpack type supporting assembly slides on the top of the supporting assembly and is connected to the movable mold plate, and the injection mechanism is arranged on the top of the backpack type supporting assembly and is arranged obliquely downwards in the direction close to the movable mold plate. Due to the fact that the supporting base, the backpack type supporting assembly and the injection mechanism are all located above the tail plate, the length of the injection molding machine in the horizontal direction is short, and the overall size of the injection molding machine is small.

Description

Technical Field

[0001] The utility model relates to the field of injection molding machines, in particular to a backpack-type bevel injection structure applied to a three-plate machine. Background Art

[0002] As a highly efficient plastic molding equipment, the injection molding machine has made significant technological progress and development in recent years.

[0003] Chinese invention patent publication number CN214773516U proposes a counter-injection molding machine, which includes a frame, a clamping device and two injection devices. The clamping device and the injection device are both mounted on the frame, and the main and auxiliary injection devices are horizontally arranged on both sides of the clamping device to inject molten materials into the mold in the clamping device. Both injection devices slide on the frame so that the distance between the injection device and the clamping device can be adjusted.

[0004] Since the two injection devices and the clamping device are both relatively large in size and are independently arranged, the entire injection molding machine is large in size and occupies a large area, and there is still room for improvement. Utility Model Content

[0005] In order to reduce the floor space occupied by an injection molding machine, the utility model provides a backpack-type angled injection structure applied to a three-platen machine.

[0006] The utility model provides a backpack angled injection structure applied to a three-platen machine, which adopts the following technical solutions:

[0007] A backpack angled injection structure applied to a three-platen machine comprises a tail plate and a movable template that moves relative to the tail plate during injection molding, and also comprises an angled injection mechanism, a backpack support assembly for mounting the angled injection mechanism, and a support base for mounting the backpack support assembly, wherein the support base is fixedly arranged on the top of the tail plate, the backpack support assembly slides on the top of the support assembly and is connected to the movable template so that the movable template drives the angled injection mechanism to move horizontally, and the angled injection mechanism is arranged on the top of the backpack support assembly and is inclined downward in a direction close to the movable template so as to obliquely inject molten material from the movable template into the mold.

[0008] By adopting the above technical solution, compared with the existing structure of the opposite-shot injection molding machine in which the main and auxiliary angled injection mechanisms are arranged horizontally on the front and rear sides of the clamping device, the support base, the backpack support assembly and the angled injection mechanism of the above structure are all located above the tail plate, and the angled injection mechanism is tilted, so that the material can be tilted and injected into the mold between the clamping devices, so that the overall length and volume of the injection molding machine are greatly reduced, and the floor space is reduced. Since the moving range of the angled injection mechanism is always located on the tail plate, and the tail plate does not move during the entire opening and closing process of the injection molding machine, the tail plate can withstand a large load when designed, so the above structure can be applied to angled injection mechanisms of larger mass.

[0009] Optionally, a linear rail is provided at the top of the support base along the length direction, and a linear rail slider cooperating with the linear rail is provided at the bottom of the backpack support assembly.

[0010] By adopting the above technical solution, through the cooperation of the whole moving linear rail and the linear rail slider, the friction of the bevel injection mechanism sliding on the support base is small, and the movable template only needs to apply a small force to drive the bevel injection mechanism to move. In addition, since the whole moving linear rail is fixedly installed on the tail plate as a whole, when the bevel injection mechanism slides on the whole moving linear rail, the overall center of gravity of the bevel injection mechanism is always located on the tail plate, and the tail plate can bear the heavy weight of the bevel injection mechanism, and the bevel injection mechanism is installed on it more stably.

[0011] Optionally, the length of the support base is 1 to 1.5 times the length of the tail plate; the length of the entire moving linear rail is not less than the moving distance of the movable template.

[0012] By adopting the above technical solution, the length of the support base is reasonably set according to the distance relationship between the tail plate and the moving template, so that the support base can realize the supporting function and moving function of the angled injection mechanism while the overall length and volume of the support base are small, thereby realizing miniaturization of the product.

[0013] Optionally, a connecting component is provided between the backpack support component and the movable template to drive the two to move synchronously and to be flexibly connected. One end of the connecting component is rotatably connected to the backpack support component, and the other end thereof is rotatably connected to the movable template.

[0014] By adopting the above technical solution, when the backpack support assembly is installed on the support base, one end thereof is not directly fixedly connected to the movable template, but is connected to the movable template through the connecting assembly. Since both ends of the connecting assembly are rotatably connected, the connecting assembly can rotate within a certain range, so that the connection between the backpack support assembly and the movable template is flexibly connected. When the injection molding machine performs an injection action, the reverse force applied to the angled injection mechanism can be offset by the connecting assembly, and the impact on the equipment is relatively small.

[0015] Optionally, a rotating connection structure for adjusting the rotation angle of the angled injection mechanism is provided between the backpack support assembly and the support base, and a rotating fine-tuning assembly for adjusting the horizontal position of the nozzle of the angled injection mechanism and a height adjustment structure for adjusting the height position of the nozzle of the angled injection mechanism are also provided between the two.

[0016] By adopting the above technical solution, when the injection nozzle of the angled injection mechanism needs to be replaced, the nozzle of the angled injection mechanism can be rotated to the side of the injection molding machine by rotating the backpack base, so that the operator can easily replace the injection nozzle, which is convenient for equipment maintenance. In addition, the horizontal position of the angled injection mechanism is adjusted by rotating the fine-tuning component, and the height position of the nozzle of the angled injection mechanism is adjusted by the height adjustment structure, thereby adjusting the position of the nozzle of the angled injection mechanism to ensure that the nozzle can be aligned with the position of the injection port of the mold as required.

[0017] Optionally, the rotation fine-tuning assembly includes a driving bolt, which rotates on the adjustment plate and is connected to the backpack support assembly to adjust a small rotation angle of the backpack support assembly on the adjustment plate.

[0018] By adopting the above technical solution, when the nozzle of the angled injection mechanism is not aligned with the position of the mold nozzle opening, the driving bolt is driven to rotate by a tool. At this time, the driving bolt can drive the angled injection mechanism and the backpack base to perform fine adjustments in the horizontal direction. The adjustment method of the above-mentioned angled injection mechanism is relatively simple.

[0019] Optionally, the angled injection mechanism is installed in an inclined and slidable manner on the top of the backpack support assembly, and a power assembly is provided between the backpack support assembly and the angled injection mechanism to drive the angled injection mechanism to tilt and slide so as to adjust the distance from the nozzle to the injection port of the mold.

[0020] By adopting the above technical solution and setting a power assembly, the power assembly can drive the angled injection mechanism to move on the inclined plate, thereby adjusting the distance between the nozzle of the angled injection mechanism and the nozzle opening of the mold, which is more convenient.

[0021] Optionally, the power assembly includes an integral movement motor disposed on the positioning plate and used to provide power, an integral movement screw connected to the integral movement motor and driven to rotate by the integral movement motor, an integral movement nut installed on the integral movement screw and moving on the integral movement screw, and a spring connector connecting the integral movement nut and the angled injection mechanism.

[0022] By adopting the above technical solution, the whole-movement motor can drive the whole-movement screw to rotate, so that the whole-movement screw nut can move on the whole-movement screw. Since the bevel injection mechanism is connected to the whole-movement screw nut, the bevel injection mechanism can also move synchronously with the whole-movement screw nut. Through the above screw drive method, the movement process of the bevel injection mechanism is relatively stable, and the distance adjustment is relatively accurate. In addition, by setting a spring connector, a buffering effect is provided between the bevel injection mechanism and the whole-movement screw nut.

[0023] In summary, the present invention includes at least one of the following beneficial technical effects:

[0024] 1. A backpack angled injection structure applied to a three-platen machine, wherein a support base, a backpack support assembly and an angled injection mechanism are mounted on the top of a back plate, and the angled injection mechanism is tilted, so that the nozzle of the angled injection mechanism can be tilted to align with the injection port of the mold, thereby reducing the overall volume of the injection molding machine and occupying a smaller area;

[0025] 2. By setting a connecting component between the backpack support component and the moving platen, when the injection molding machine performs an injection action, the reverse force applied to the angle injection mechanism can be offset by the connecting component, which has less impact on the equipment.

[0026] 3. By setting up a rotary fine-tuning component, the bevel injection mechanism can be adjusted horizontally on the supporting base to facilitate alignment with the nozzle hole of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of a backpack-type angled injection structure applied to a three-platen machine according to an embodiment of the utility model.

[0028] Figure 2 It is an exploded view of a backpack support assembly according to an embodiment of the utility model.

[0029] Figure 3 It is a structural schematic diagram of a rotary fine-tuning assembly according to an embodiment of the utility model.

[0030] Figure 4 It is a schematic structural diagram of a power assembly of an embodiment of the utility model.

[0031] Figure 5 It is a structural schematic diagram of a connection assembly of an embodiment of the utility model.

[0032] Description of reference numerals: 1, tail plate; 2, moving plate; 3, support base; 31, whole moving linear rail; 4, backpack support assembly; 41, adjustment plate; 411, linear rail slider; 412, plug hole; 413, rotating bearing; 42, backpack base; 421, bottom plate; 4211, rotating shaft; 422, inclined plate; 4221, inclined guide surface; 4222, guide rail; 4223, limit block; 423, positioning plate; 424, height adjustment structure; 4241, adjusting bolt; 425 , rotary fine-tuning assembly; 4251, fixed seat; 4252, driving bolt; 4253, push block; 426, power assembly; 4261, full-shift motor; 4262, full-shift lead screw; 4263, full-shift nut; 4264, spring connector; 42641, fixed block; 42642, spring; 5, injection mechanism; 51, guide block; 6, connecting assembly; 61, full-shift connecting rod; 62, adjusting threaded sleeve; 63, first hinge seat; 64, second hinge seat; 65, radial spherical bearing. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-5 The utility model is described in further detail.

[0034] The utility model embodiment discloses a backpack-type angled injection structure applied to a three-platen machine.

[0035] Reference Figure 1 A backpack angled injection structure applied to a three-platen machine includes a tail plate 1, a movable plate 2, a support base 3, a backpack support assembly 4 and an angled injection mechanism 5. The tail plate 1 and the movable plate 2 are both basic components of the injection molding machine. When opening and closing the mold, the movable plate 2 can move horizontally relative to the tail plate 1. The support base 3 is fixedly arranged on the tail plate 1. The backpack support assembly 4 is slidably arranged on the top of the support base 3 and is used for the installation of the angled injection mechanism 5. The backpack support assembly 4 is connected to the movable plate 2 through a connecting assembly 6. When the injection molding machine performs a mold opening and closing action, the movable plate 2 can drive the backpack support assembly 4 and the angled injection mechanism 5 to move synchronously.

[0036] The support base 3 is a square metal frame formed by welding a plurality of square steel pipes. The support base 3 is fixed to the top of the tail plate 1 by welding. In order to make the backpack support assembly 4 more stable on the support base 3, the length of the support base 3 is 1 to 1.5 times the length of the tail plate 1, so that the center of gravity of the backpack support assembly 4 and the angled injection mechanism 5 is always located on the tail plate 1.

[0037] Reference Figure 1 and Figure 2The backpack support assembly 4 includes an adjustment plate 41 and a backpack base 42 disposed on the adjustment plate 41. The adjustment plate 41 is a square steel plate, and its width is adapted to the width of the support base 3. The bottom of the adjustment plate 41 is symmetrically provided with a linear rail slider 411, and the top of the support base 3 is provided with a whole-movement linear rail 31 for the linear rail slider 411 to be inserted and slid along the length direction, so that the backpack base 42 can slide on the support base 3 through the adjustment plate 41.

[0038] The length of the entire moving linear rail 31 is not less than the moving distance of the movable platen 2 , so that when the movable platen 2 drives the backpack support assembly 4 to slide, the backpack support assembly 4 is not easy to fall off from the support base 3 .

[0039] The backpack base 42 also includes a bottom plate 421, an inclined plate 422 and a positioning plate 423. The bottom plate 421 is a square steel plate, and its width is slightly smaller than the adjustment plate 41. There are two inclined plates 422, which are symmetrically arranged on both sides of the bottom plate 421. The inclined plate 422 has an inclined guide surface 4221, and the inclined guide surface 4221 is inclined downward in the direction close to the dynamic template 2. The positioning plate 423 is a square steel plate, which is arranged between the two inclined plates 422 for connecting the two inclined plates 422. The bottom plate 421, the inclined plate 422 and the positioning plate 423 are fixed by welding, and the structural strength is relatively high.

[0040] A rotating connection structure is arranged between the backpack base 42 and the supporting base 3, and the rotating connection structure includes a rotating shaft 4211 and a plug-in hole 412. The rotating shaft 4211 is vertically arranged on the bottom plate 421, and the plug-in hole 412 is opened on the adjustment plate 41 for the rotating shaft 4211 to be inserted, and a rotating bearing 413 which is sleeved with the rotating shaft 4211 is installed in the plug-in hole 412, so that the backpack base 42 can rotate horizontally on the adjustment plate 41.

[0041] A sliding structure is provided between the inclined guide surface 4221 and the angled injection mechanism 5, and the sliding structure includes a guide block 41 and a guide rail 3222. The guide block 51 is provided at the bottom of the angled injection mechanism 5, and the guide rail 4222 is provided on the inclined plate 422 on the inclined guide surface 4221 for the guide block 51 to slide, so that the angled injection mechanism 5 is slidably installed on the inclined guide surface 4221 of the inclined plate 422. In order to prevent the angled injection mechanism 5 from sliding off the guide rail 4222, a limit block 4223 is provided at the bottom of the guide rail 4222, and when the angled injection mechanism 5 slides on the inclined guide surface 4221, the angled injection mechanism 5 can abut against the limit block 4223.

[0042] The backpack base 42 is also provided with a height adjustment structure 424, a rotation fine adjustment component 425 and a power component 426. The height adjustment structure 424 is used to fine-tune the height of the backpack base 42 to change the height position of the nozzle of the angled injection mechanism 5, the rotation fine adjustment component 425 is used to fine-tune the rotation angle of the backpack base 42 on the support base 31 to change the horizontal position of the nozzle of the angled injection mechanism 5, the power component 326 is used to drive the angled injection mechanism 5 to tilt and slide on the backpack base 42, and the power component 426 is used to drive the angled injection mechanism 5 to tilt and slide on the backpack base 42.

[0043] The height adjustment structure 424 includes an adjustment bolt 4241, which is threadedly connected to the bottom plate 421 and rotated on the adjustment plate 41. By rotating the adjustment bolt 4241, the bottom plate 421 can be vertically moved on the adjustment bolt 4241. In this embodiment, there are four adjustment bolts 4241, which are symmetrically arranged on both sides of the bottom plate 421.

[0044] Reference Figure 2 and Figure 3 , the rotary fine-tuning assembly 425 includes a fixed seat 4251, a driving bolt 4252 and a push block 4253. The fixed seat 4251 is fixed to the adjustment plate 41 by screws, and the fixed seat 4251 can slide slightly in the height direction along the screws. The driving bolt 4252 passes through the fixed seat 4251 horizontally, and the fixed seat 4251 has a through hole, and the diameter of the through hole is slightly larger than the diameter of the driving bolt 4252, so that the driving bolt 4252 can tilt in the through hole. The driving bolt 4252 passes through the fixed seat 4251 horizontally. The push block 4253 is threadedly connected to the end of the driving bolt 4252 and is fixedly installed on the side wall of the base plate 421 by screws. By rotating the driving bolt 4252, the push block 4253 can move on the driving bolt 4252, thereby driving the backpack base 42 to rotate slightly with the rotating shaft 4211 as the rotation center.

[0045] Combination Figures 1 to 3 When the horizontal fine adjustment of the nozzle of the angled injection mechanism 5 is performed by rotating the fine adjustment component 425, the adjusting bolt 4241 of the height adjustment structure 424 is first removed so that the backpack base 42 can be rotated. When the height fine adjustment of the nozzle of the angled injection mechanism 5 is performed by the height adjustment structure 424, the rotating fine adjustment component 425 does not need to be removed.

[0046] When the nozzle of the angled injection mechanism 5 needs to be replaced, the operator needs to first remove the height adjustment structure 424 and the rotation fine adjustment assembly 425, and then rotate the backpack base 42 so that the nozzle of the angled injection mechanism 5 can be rotated to face the side of the injection molding machine. When the nozzle of the angled injection mechanism 5 is replaced, the height adjustment structure 424 and the rotation fine adjustment assembly 425 are reinstalled.

[0047] Reference Figure 1 , Figure 2 and Figure 4 The power assembly 426 includes a full-shift motor 4261, a full-shift lead screw 4262, a full-shift screw nut 4263, and a spring connector 4264. The full-shift motor 4261 is fixedly disposed on the positioning plate 423. The full-shift lead screw 4262 is inserted through and rotatably disposed on the positioning plate 423, and the full-shift lead screw 4262 is parallel to the plane where the inclined guide surface 4221 is located. The full-shift screw nut 4263 is threadedly connected to the full-shift lead screw 4262.

[0048] The spring connector 4264 includes a fixed block 42641 and a spring 42642. The fixed block 42641 is sleeved on the whole moving lead screw 4262, one side of the fixed block 42641 is connected to the whole moving screw 4263, and the top of the fixed block 42641 is fixedly connected to the bottom of the bevel injection mechanism 5 by a screw. The spring 42642 is arranged between the fixed block 42641 and the whole moving screw 4263, one end of which is connected to the fixed block 42641, and the other end is connected to the whole moving screw 4263.

[0049] The moving motor 4261 drives the moving screw 4262 to rotate, and the moving screw nut 4263 can be displaced along the length direction on the moving screw 4262, so that the angled injection mechanism 5 can slide on the inclined guide surface 4221. In addition, due to the provision of the spring 42642, when the moving motor 4261 drives the angled injection mechanism 5 to move, a certain buffering effect is provided.

[0050] Combination Figure 1 , Figure 2 and Figure 5 The connecting assembly 6 includes a full-movement connecting rod 61 and an adjusting threaded sleeve 62. A first hinge seat 63 is fixedly provided on the bottom plate 421, and a second hinge seat 64 is fixedly provided on the top of the movable template 2. There are two adjusting threaded sleeves 62, and there are two adjusting threaded sleeves 62, one end of which is hingedly connected to the first hinge seat 63, and the other end of which is hingedly connected to the second hinge seat 64. Both ends of the full-movement connecting rod 61 are respectively threadedly connected to the adjusting threaded sleeves 62.

[0051] By rotating the full-shift connecting rod 61 , the adjusting threaded sleeve 62 can be extended and retracted relative to the full-shift connecting rod 61 , thereby adjusting the overall length of the connecting assembly 6 .

[0052] When the backpack base 42 is adjusted on the adjustment plate 41, the connecting assembly 6 is tilted, so radial spherical bearings 65 are provided at the hinged connection between the adjusting threaded sleeve 62 and the first hinge seat 63 and at the hinged connection between the adjusting threaded sleeve 62 and the second hinge seat 64, so that the connecting assembly 6 can adapt to the position change of the backpack base 42.

[0053] In this embodiment, there are two connecting components 6 symmetrically arranged on both sides of the backpack base 42. When the movable template 2 drives the backpack base 42 to move, the backpack base 42 is evenly stressed.

[0054] Combination Figures 1 to 5 The implementation principle of a backpack angled injection structure applied to a three-platen machine in an embodiment of the utility model is as follows: an angled injection mechanism 5 is arranged on a backpack support component 4, the backpack support component 4 slides on a support base 3, the backpack support component 4 is connected to a movable template 2 through a connecting component 6, and the movable template 2 can drive the backpack support component 4 to slide, and the above-mentioned support base 3, backpack support component 4 and angled injection mechanism 5 are all located on a tail plate 1, thereby reducing the length of the injection molding machine in the horizontal direction, and the volume of the injection molding machine is relatively small.

[0055] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A backpack angled injection structure for a three-platen machine, comprising a tail plate (1) and a movable plate (2) that moves relative to the tail plate (1) during injection molding, characterized in that: It also includes an angled injection mechanism (5), a backpack support assembly (4) for mounting the angled injection mechanism (5), and a support base (3) for mounting the backpack support assembly (4), wherein the support base (3) is fixedly disposed on the top of the tail plate (1), the backpack support assembly (4) slides on the top of the support base (3) and is connected to the movable template (2) so that the movable template (2) drives the angled injection mechanism (5) to move horizontally, and the angled injection mechanism (5) is disposed on the top of the backpack support assembly (4) and is tilted downward in a direction close to the movable template (2) so as to tilt the molten material from the movable template (2) into the mold.

2. The backpack angle injection structure for three-platen machine according to claim 1, characterized in that: The top of the support base (3) is provided with an integral linear rail (31) along the length direction, and the bottom of the backpack support assembly (4) is provided with a linear rail slider (411) that cooperates with the integral linear rail (31).

3. The backpack angled injection structure for a three-platen machine according to claim 2, characterized in that: The length of the support base (3) is 1 to 1.5 times the length of the tail plate (1); the length of the entire moving linear rail (31) is not less than the moving distance of the movable plate (2).

4. The backpack angle injection structure for three-platen machine according to claim 1, characterized in that: A connecting component (6) is provided between the backpack support component (4) and the movable platen (2) to drive the two to move synchronously and to connect them flexibly. One end of the connecting component (6) is rotatably connected to the backpack support component (4), and the other end is rotatably connected to the movable platen (2).

5. The backpack angle injection structure applied to a three-platen machine according to claim 2, characterized in that: The backpack support assembly (4) comprises an adjustment plate (41) and a backpack base (42) arranged on the adjustment plate (41); the backpack base (42) comprises a bottom plate (421), an inclined plate (422) and a positioning plate (423); a rotating connection structure for adjusting the rotation angle of the bevel injection mechanism (5) is arranged between the backpack support assembly (4) and the support base (3); and a rotating fine-tuning assembly (425) for adjusting the horizontal position of the nozzle of the bevel injection mechanism (5) and a height adjustment structure (424) for adjusting the height position of the nozzle of the bevel injection mechanism (5) are also arranged between the two.

6. The backpack angle injection structure for three-platen machine according to claim 5, characterized in that: The rotation fine-tuning assembly (425) includes a driving bolt (4252), which rotates on the adjustment plate (41) and is connected to the backpack base (42) to adjust a small rotation angle of the backpack base (42) on the adjustment plate (41).

7. The backpack angle injection structure for three-platen machine according to claim 6, characterized in that: The angled injection mechanism (5) is installed on the top of the backpack support component (4) in an inclined and sliding manner, and a power component (426) is provided between the backpack support component (4) and the angled injection mechanism (5) to drive the angled injection mechanism (5) to slide in an inclined manner so as to adjust the distance from the nozzle to the injection port of the mold.

8. The backpack angle injection structure for three-platen machine according to claim 7, characterized in that: The power assembly (426) includes an adjustment motor (4261) disposed on the positioning plate (423) and used to provide power, an adjustment screw (4262) connected to the adjustment motor (4261) and rotated under the drive of the adjustment motor (4261), an adjustment nut (4263) installed on the adjustment screw (4262) and moving on the adjustment screw (4262), and a spring connector (4264) connecting the adjustment nut (4263) and the angled injection mechanism (5).

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